Thermodynamic properties of molten LiMg alloy

R. N. Singh*, D. K. Pandey, S. Sinha, N. R. Mitra, P. L. Srivastava

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


The activity, the heat of mixing, the concentration fluctuation in the long wavelength limit (Scc(0)) and the chemical short range order parameter (CSRO) have been studied as a function of composition in LiMg molten alloys by using first order quasi-chemical (QC) theory. The interchange energy has been considered a function of temperature and thus various thermodynamic quantities are calculated at elevated temperatures. The study reveals that though LiMg is considered a simple regular alloy, its various thermodynamic properties deviate from the ideal solution behaviour. Scc(0) computed at different temperatures from QC-theory are found to be smaller than the ideal values and heterocoordination in the nearest neighbour shell is found to exist through the entire concentration range. On the other hand, Scc(0) computed directly from the measured activity data indicates that the LiMg liquid alloy behaves as a segregating system for smaller content of Li (CLi≤0.3). The building of heterocoordination starts around CLi≥0.3 and remains for the rest of the compositions.

Original languageEnglish
Pages (from-to)358-364
Number of pages7
JournalPhysica B+C
Issue number3
Publication statusPublished - Aug 1987

ASJC Scopus subject areas

  • Engineering(all)


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